EP0764802B1 - Shut-off and control valve - Google Patents
Shut-off and control valve Download PDFInfo
- Publication number
- EP0764802B1 EP0764802B1 EP96114121A EP96114121A EP0764802B1 EP 0764802 B1 EP0764802 B1 EP 0764802B1 EP 96114121 A EP96114121 A EP 96114121A EP 96114121 A EP96114121 A EP 96114121A EP 0764802 B1 EP0764802 B1 EP 0764802B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- depression
- shut
- disks
- disk
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000463 material Substances 0.000 claims abstract description 7
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 15
- 230000001105 regulatory effect Effects 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000004519 grease Substances 0.000 description 7
- 238000005299 abrasion Methods 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 210000000577 adipose tissue Anatomy 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/36—Features relating to lubrication
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/04—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members
- F16K3/06—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages
- F16K3/08—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages with circular plates rotatable around their centres
Definitions
- the invention relates to a shut-off and regulating valve, in particular for water fittings, with a valve disc made of hard material, which is held non-rotatably in the housing and has at least one through-opening and a smoothed seat surface, on which a valve disc, which is also made of hard material and rotatable coaxially to the central axis, has at least one through-opening abuts with a smoothed sealing surface, the passage openings being arranged outside the center of the disks and at least one recess being formed in a valve disk from the sealing surface eccentrically to the central axis, which is acted upon by the flow medium at least in the closed valve position.
- a shut-off and regulating valve of this type is known for example from DE-U-87 15 044.1.
- the depressions are arranged as grooves outside the center of the disks. They are intended to reduce the friction surfaces of the disks and serve as so-called grease nests.
- valve disks made of ceramic material are mostly used, the sealing surfaces of the disks being provided with a grease film during assembly in order to enable the valve disks to move smoothly with respect to one another.
- the applied grease film can be partially removed by the rotary movements of the valve surfaces relative to each other.
- deposits and disk ballast form, the ballast from wear material being formed by the ceramic disks and grease residues.
- the invention has for its object in the preamble of claim 1 valve to improve and form the valve disks so that also from Disc center from washing away from fat and abrasion existing gravel becomes.
- This object is achieved in that at least one depression touches the central axis or slightly overlaps, so that in operation the center of the Valve disks in connection with valve actuation is wetted by the flow medium.
- valve disk in which the recess is formed can be appropriately provided with a corresponding curvature extending into the passage opening, so that a uniform disk overlap is ensured in the closed position of the valve disks.
- valve disk 1 shows a valve disk 1 made of ceramic material, which is rotatably attached to the valve disk 2 shown in FIG.
- the valve disks 1, 2 are provided for installation in a known valve housing, not shown in the drawing.
- the valve disc 2 is arranged in a rotationally fixed manner in the valve housing.
- the valve disc 2 has two approximately opposite radial projections 22 with which it fits into corresponding longitudinal grooves in the valve housing.
- the valve disc 1 is provided with opposite recesses 12, in the corresponding claws of a valve stem, not shown in the drawing, mounted in the valve housing, such that on the one hand a rotationally fixed connection between the valve stem and the valve disc 1 is made, and on the other hand one against the water pressure axial support is provided.
- valve disk 2 which acts as a valve seat and is held in a rotationally fixed manner, is arranged upstream and bears with a smoothly ground sealing surface 20 against a correspondingly ground sealing surface 10 of the rotatable valve disk 1. Both valve disks 1 and 2 are thus axially supported by the valve spindle, not shown in the drawing.
- the valve disks 1 and 2 each have a passage opening 11, 21 in one half.
- the through openings 11, 21 have the shape of a circular segment in cross-section, wherein a base line 3, offset approximately parallel to the diameter 6 of the valve disks 1, 2, delimit the through openings 11, 21 on one half of the disk.
- a recess 5 designed as a blind hole in the half opposite to the passage opening 21 Half of the valve disc 2 is formed.
- the recess 5 is here on a perpendicular to Baseline 3 arranged center line 31 and touches or slightly overlaps the central axis 4. This ensures a constant overlap of the two valve disks 1 and 2 ensured in the shut-off position is, the baseline 3 concentrically Indentation 5 extends into the passage opening 21 Curvature 32 on.
- valve disks 1 and 2 are mounted together as a pair, as they are arranged in a known valve housing - not shown in the drawing.
- the valve disks 1 and 2 are shown in the shut-off position, ie the passage opening 21 of the upstream disk 2 is shut off via the sealing surfaces 10 and 20 in front of the valve disk 1 which is rotatable downstream with the valve spindle - not shown in the drawing.
- the depression 5 in the upstream valve disk 2 is connected to the water present in the valve housing via the passage opening 11 of the valve disk 1.
- valve disc 1 with the valve spindle has been rotated clockwise by 135 ° to the non-rotatable valve disc 2, so that the through openings 21 and 11 now overlap to a 3/4.
- the recess 5 moves around the central area of the sealing surface 10 of the valve disk 1 and wets this area with water.
- the rotatable valve disc 1 is rotated 180 ° to the non-rotatable valve seat disc 2, so that in this position both through openings 11 and 21 overlap.
- the recess 5 which is preferably designed as a blind bore, can expediently be provided with a diameter which is approximately 1/20 of the outer diameter of the valve disks 1, 2.
- valve disc Especially when there are several openings per valve disc can of course also have several specializations formed in the center of a valve disc be, so that then with a correspondingly reduced Angle of rotation of the two valve disks to one another ensures adequate wetting of the disc center becomes.
Abstract
Description
Die Erfindung betrifft ein Absperr- und Regulierventil,
insbesondere für Wasserarmaturen, mit einer im Gehäuse
unverdrehbar gehaltenen, wenigstens eine Durchtrittsöffnung
und eine geglättete Sitzoberfläche aufweisenden
Ventilscheibe aus Hartstoff, an der eine koaxial zur
Mittelachse drehbare, ebenfalls aus Hartstoff hergestellte,
wenigstens eine Durchtrittsöffnung aufweisende
Ventilscheibe mit einer geglätteten Dichtfläche anliegt,
wobei die Durchtrittsöffnungen außerhalb der Mitte der
Scheiben angeordnet sind und in einer Ventilscheibe von
der Dichtfläche aus exzentrisch zur Mittelachse wenigstens
eine Vertiefung ausgebildet ist, die zumindest in
geschlossener Ventilstellung vom Durchflußmedium beaufschlagt
ist.
Ein Absperr- und Regulierventil dieser Gattung ist beispielsweise
aus der DE-U-87 15 044.1 bekannt. Hierbei
sind die Vertiefungen als Nuten außerhalb des Zentrums
der Scheiben angeordnet. Sie sollen die Reibflächen der
Scheiben mindern und als sogenannte Fettnester dienen.
Bei derartigen Ventilen werden meist Ventilscheiben aus
Keramikmaterial eingesetzt, wobei beim Zusammenmontieren
die Dichtflächen der Scheiben mit einem Fettfilm versehen
werden, um ein leichtgängiges Bewegen der Ventilscheiben
zueinander zu ermöglichen. Bei der Benutzung
des Ventils kann durch die Drehbewegungen der Ventilflächen
zueinander der aufgetragene Fettfilm zum Teil
wieder abgetragen werden. Gleichzeitig bilden sich, wie
beobachtet wurde, Ablagerungen und Scheibenaufschotterungen,
wobei die Aufschotterungen aus Abriebmaterial
von den Keramikscheiben und Fettrückständen gebildet
werden. Diese Ablagerungen und Aufschotterungen werden
durch das Übergleiten der Durchtrittsöffnungen im wesentlichen
wieder abgestreift und vom durchfließenden
Medium Wasser weggespült, wobei der Wasserfilm ebenfalls
eine gewisse Schmierung bewirkt.
Im Scheibenzentrum hingegen können die Ablagerungen und
Aufschotterungen weder durch die Drehbewegung abgeschoben,
noch können sie aus diesem Bereich fortgespült
werden. Im scheibenmittigen Bereich verbleibt somit die
eingebrachte Fettmenge bzw. es entsteht hier ein Fettpolster.
Dies bedeutet, daß im Randbereich ein Spalt in
der Dicke des Fettpolsters entstehen und zu einer Undichtigkeit
des Ventils führen kann. Da im Neuzustand
die gesamten Dichtflächen mit einem Fettfilm versehen
sind, können Undichtigkeiten erst zu einem späteren
Zeitpunkt auftreten, wenn das Fett und die Aufschotterungen
aus den Randbereichen der Dichtflächen fortgespült
sind.The invention relates to a shut-off and regulating valve, in particular for water fittings, with a valve disc made of hard material, which is held non-rotatably in the housing and has at least one through-opening and a smoothed seat surface, on which a valve disc, which is also made of hard material and rotatable coaxially to the central axis, has at least one through-opening abuts with a smoothed sealing surface, the passage openings being arranged outside the center of the disks and at least one recess being formed in a valve disk from the sealing surface eccentrically to the central axis, which is acted upon by the flow medium at least in the closed valve position.
A shut-off and regulating valve of this type is known for example from DE-U-87 15 044.1. Here, the depressions are arranged as grooves outside the center of the disks. They are intended to reduce the friction surfaces of the disks and serve as so-called grease nests. In such valves, valve disks made of ceramic material are mostly used, the sealing surfaces of the disks being provided with a grease film during assembly in order to enable the valve disks to move smoothly with respect to one another. When using the valve, the applied grease film can be partially removed by the rotary movements of the valve surfaces relative to each other. At the same time, as has been observed, deposits and disk ballast form, the ballast from wear material being formed by the ceramic disks and grease residues. These deposits and gravel deposits are essentially stripped off again by sliding over the through-openings and washed away by the water flowing through, the water film likewise causing a certain amount of lubrication.
In the disc center, on the other hand, the deposits and gravel cannot be pushed off by the rotary movement, nor can they be washed away from this area. The amount of fat introduced thus remains in the center of the disk or a fat cushion is created here. This means that there is a gap in the thickness of the fat pad in the edge area and can lead to a leak in the valve. Since the entire sealing surfaces are provided with a grease film when new, leaks can only occur at a later point in time when the grease and the ballast are washed away from the edge areas of the sealing surfaces.
Der Erfindung liegt die Aufgabe zugrunde, das im Oberbegriff
des Anspruchs 1 angegebene Ventil zu verbessern
und die Ventilscheiben so auszubilden, daß auch vom
Scheibenzentrum aus ein Fortschwemmen von den aus Fett
und Abrieb bestehenden Aufschotterungen ermöglicht
wird. The invention has for its object in the preamble
of
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß wenigstens eine Vertiefung die Mittelachse berührt oder geringfügig übergreift, so daß im Betrieb auch das Zentrum der Ventilscheiben in Verbindung mit der Ventilbetätigung vom Durchflußmedium benetzt wird.This object is achieved in that at least one depression touches the central axis or slightly overlaps, so that in operation the center of the Valve disks in connection with valve actuation is wetted by the flow medium.
Weitere Ausgestaltungen der Erfindung sind in den Ansprüchen
2 bis 6 angegeben.Further embodiments of the invention are in the
Mit diesen erfindungsgemäßen Maßnahmen kann weitgehend
ein unerwünschtes Undichtwerden des Absperr- und Regulierventils
nach einer längeren Gebrauchsdauer unterbunden
werden. Durch eine Einbringung von einer oder
mehreren exzentrischen Vertiefungen an einer Ventilscheibe
wird es ermöglicht, daß auch das Scheibenzentrum
der Ventilscheiben vom Wasser benetzt wird und der
Abrieb und das Fett in gleichem Maße weggespült werden
kann.
In weiterer Ausgestaltung der Erfindung kann zweckmäßig
die Ventilscheibe, in der die Vertiefung ausgebildet
ist, mit einer entsprechenden, sich in die Durchtrittsöffnung
hinein erstreckenden Wölbung versehen werden,
so daß in der Schließstellung der Ventilscheiben eine
gleichmäßige Scheibenüberdeckung gewährleistet wird.With these measures according to the invention, an undesired leakage of the shut-off and regulating valve can largely be prevented after a longer period of use. By introducing one or more eccentric depressions on a valve disk, it is possible for the disk center of the valve disks to be wetted by the water and for the abrasion and the grease to be washed away to the same extent.
In a further embodiment of the invention, the valve disk in which the recess is formed can be appropriately provided with a corresponding curvature extending into the passage opening, so that a uniform disk overlap is ensured in the closed position of the valve disks.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben. Es zeigt
Figur 1- eine als drehbare Regulierscheibe ausgebildete Ventilscheibe in Draufsicht auf die Dichtfläche;
Figur 2- eine drehfest gehaltene, als Ventilsitz wirkende Ventilscheibe in Draufsicht auf die Dichtfläche;
Figur 3- die beiden in
Figur 1 und 2 gezeigten Ventilscheiben, wobei die beiden Scheiben mit ihren Dichtflächen aneinander liegen und eine Absperrstellung zueinander einnehmen; Figur 4- die in
Figur 3 gezeigte Ventilscheibenpaarung, wobei die drehbare Ventilscheibe zur drehfest gehaltenen Ventilscheibe um 135° im Uhrzeigersinn gedreht worden ist, so daß von den Ventilscheiben der Durchtrittsquerschnitt etwa zu 3/4 freigegeben ist; Figur 5- die in
Figur 3 gezeigte Ventilscheibenpaarung, wobei die drehbare Ventilscheibe um 180° zu der drehfest gehaltenen Ventilscheibe im Uhrzeigersinn gedreht worden ist, so daß von den Ventilscheiben der maximale Durchtrittsquerschnitt freigegeben ist.
- Figure 1
- a valve disc designed as a rotatable regulating disc in plan view of the sealing surface;
- Figure 2
- a non-rotatable valve disc acting as a valve seat in a plan view of the sealing surface;
- Figure 3
- the two valve disks shown in Figures 1 and 2, wherein the two disks with their sealing surfaces lie against each other and assume a shut-off position to each other;
- Figure 4
- the pair of valve disks shown in Figure 3, wherein the rotatable valve disk has been rotated clockwise by 135 ° to the non-rotatable valve disk, so that about 3/4 of the passage cross section is released from the valve disks;
- Figure 5
- the pair of valve disks shown in Figure 3, wherein the rotatable valve disk has been rotated clockwise by 180 ° to the non-rotatable valve disk, so that the maximum passage cross section is released by the valve disks.
In Figur 1 ist eine aus Keramikmaterial hergestellte
Ventilscheibe 1 gezeigt, die an die in Figur 2 gezeigte
Ventilscheibe 2 drehbar angelagert wird. Die Ventilscheiben
1,2 sind für den Einbau in ein in der Zeichnung
nicht dargestelltes bekanntes Ventilgehäuse vorgesehen.
Die Ventilscheibe 2 wird dabei in dem Ventilgehäuse
drehfest angeordnet. Zu diesem Zweck hat die Ventilscheibe
2 zwei etwa gegenüberliegende Radialvorsprünge
22, mit denen sie in entsprechende Längsnuten
in dem Ventilgehäuse einfaßt. Die Ventilscheibe 1 ist
dabei mit gegenüberliegenden Ausnehmungen 12 versehen,
in die entsprechende Klauen einer in der Zeichnung
nicht dargestellten, im Ventilgehäuse gelagerten Ventilspindel
einfassen, derart, daß einerseits eine drehfeste
Verbindung zwischen Ventilspindel und Ventilscheibe
1 hergestellt ist, und andererseits gegenüber
dem anstehenden Wasserdruck eine axiale Abstützung erfolgt.
Hierbei ist die als Ventilsitz wirkende, drehfest
gehaltene Ventilscheibe 2 stromaufwärts angeordnet
und liegt mit einer glatt geschliffenen Dichtfläche 20
an einer entsprechend geschliffenen Dichtfläche 10 der
drehbaren Ventilscheibe 1 an. Beide Ventilscheiben 1
und 2 werden somit axial von der in der Zeichnung nicht
dargestellten Ventilspindel abgestützt.
Die Ventilscheiben 1 und 2 haben jeweils in einer Hälfte
eine Durchtrittsöffnung 11,21. Die Durchtrittsöffnungen
11,21 weisen dabei im Querschnitt die Form eines
Kreissegments auf, wobei jeweils eine Basislinie 3, etwa
parallel versetzt zum Durchmesser 6 der Ventilscheiben
1,2, die Durchtrittsöffnungen 11,21 auf der einen
Scheibenhälfte begrenzen. 1 shows a
The
In der stromaufwärts angeordneten Ventilscheibe 2 ist,
von der Dichtfläche 20 ausgehend, exzentrisch zur Mittelachse
4 eine als Sackloch ausgebildete Vertiefung 5
in der der Hälfte mit der Durchtrittsöffnung 21 gegenüberliegenden
Hälfte der Ventilscheibe 2 ausgebildet.
Die Vertiefung 5 ist hierbei auf einer senkrecht zur
Basislinie 3 stehenden Mittellinie 31 angeordnet und
berührt bzw. übergreift geringfügig die Mittelachse 4.
Damit eine gleichbleibende Überdeckung der beiden Ventilscheiben
1 und 2 in der Absperrstellung sichergestellt
ist, weist die Basislinie 3 konzentrisch zur
Vertiefung 5 eine sich in die Durchtrittsöffnung 21 erstreckende
Wölbung 32 auf.In the
In den Figuren 3 bis 5 sind die Ventilscheiben 1 und 2
als Paar aneinander gelagert, wie sie in einem bekannten
Ventilgehäuse - in der Zeichnung nicht dargestellt
- angeordnet werden.
In Figur 3 sind die Ventilscheiben 1 und 2 in der Absperrstellung
gezeigt, d. h. die Durchtrittsöffnung 21
der stromaufwärts gelegenen Scheibe 2 wird vor der
stromabwärts gelegenen mit der Ventilspindel - in der
Zeichnung nicht dargestellt - drehbaren Ventilscheibe 1
über die Dichtflächen 10 und 20 abgesperrt. In dieser
Ventilscheibenstellung ist die Vertiefung 5 in der
stromaufwärts gelegenen Ventilscheibe 2 über die Durchtrittsöffnung
11 der Ventilscheibe 1 mit dem im Ventilgehäuse
vorhandenen Wasser verbunden.
In Figur 4 ist die Ventilscheibe 1 mit der in der
Zeichnung nicht dargestellten Ventilspindel um 135° im
Uhrzeigersinn zur drehfest gehaltenen Ventilscheibe 2
gedreht worden, so daß nunmehr die Durchtrittsöffnungen
21 und 11 sich zu einem 3/4 überdecken. Bei dieser
Drehbewegung wandert die Vertiefung 5 um den Zentrumsbereich
der Dichtfläche 10 der Ventilscheibe 1 und benetzt
diesen Bereich mit Wasser.
In Figur 5 ist die drehbare Ventilscheibe 1 zur drehfest
gehaltenen Ventilsitzscheibe 2 um 180° gedreht, so
daß in dieser Stellung beide Durchtrittsöffnungen 11
und 21 sich überdecken.In Figures 3 to 5, the
In FIG. 3, the
In Figure 4, the
In Figure 5, the
Mit Hilfe der Vertiefung 5 kann somit in ausreichendem
Maße das Scheibenzentrum mit Wasser benetzt werden, und
dem Aufbau von abträglichen Aufschotterungen hinreichend
entgegengewirkt werden, so daß eine etwa gleichbleibende
Dichtheit der Ventilscheibenpaarung über einen
langen Zeitraum gewährleistet wird.
Zweckmäßig kann die vorzugsweise als Sackbohrung ausgebildete
Vertiefung 5 mit einem Durchmesser versehen
werden, der etwa 1/20 des Außendurchmessers der Ventilscheiben
1,2 beträgt.With the help of the
The
Insbesondere bei mehreren Durchtrittsöffnungen je Ventilscheibe können selbstverständlich auch mehrere Vertiefungen im Zentrum einer Ventilscheibe ausgebildet werden, so daß dann auch bei einem entsprechend reduzierten Drehwinkel der beiden Ventilscheiben zueinander eine ausreichende Benetzung des Scheibenzentrums gewährleistet wird.Especially when there are several openings per valve disc can of course also have several specializations formed in the center of a valve disc be, so that then with a correspondingly reduced Angle of rotation of the two valve disks to one another ensures adequate wetting of the disc center becomes.
Claims (6)
- A shut-off and regulating valve, especially for water fittings, comprising a valve disk (2) of hard material that is held non-rotatably in the housing and has at least one passage opening (21) and a smoothed seating surface, against which valve disk (2) a valve disk (1) that is rotatable coaxially with the central axis (4) and that is likewise made of hard material and has at least one passage opening (11) rests with a smoothed sealing face (10), the passage openings (21, 11) being arranged outside the centre of the disks and, in one valve disk (2), at least one depression (5) being formed outward from the sealing face (20) and eccentrically to the central axis (4), to which depression (5) flow medium is admitted at least in the closed position of the valve, characterised in that at least one depression (5) touches or slightly overlaps the central axis (4) so that, in operation, also the centre of the valve disks (1, 2) is wetted by flow medium in connection with operation of the valve.
- A shut-off and regulating valve according to claim 1, characterised in that the depression (5) is in the form of a blind hole.
- A shut-off and regulating valve according to claim 1 or 2, characterised in that a passage opening (11, 21) having in cross-section approximately the shape of a segment of a circle is provided in one half of each valve disk (1, 2), a base line (3) offset approximately parallel to the diameter (6) of the valve disks (1, 2) defining each of the passage openings (11, 21) on one side, and the depression (5) being formed as a blind hole offset perpendicular to the base line (3) along a central line (31) in the opposite half of the one valve disk (2) in such a manner that the wall of the blind hole touches the central axis (4) or slightly overlaps it in the direction of the passage opening (21).
- A shut-off and regulating valve according to any one of claims 1 to 3, characterised in that the depression (5) has approximately a diameter that is approximately 1/20 of the outer diameter of the valve disks (1, 2).
- A shut-off and regulating valve according to any one of claims 1 to 4, characterised in that the base line (3) of the passage opening (21) in the valve disk (2) having the depression (5) has a curved portion (32) concentric with the depression and extending into the passage opening (21).
- A shut-off and regulating valve according to any one of claims 1 to 5, characterised in that the depression (5) is formed in the upstream valve disk (2).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19534849 | 1995-09-20 | ||
| DE19534849A DE19534849A1 (en) | 1995-09-20 | 1995-09-20 | Shut-off and regulating valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0764802A1 EP0764802A1 (en) | 1997-03-26 |
| EP0764802B1 true EP0764802B1 (en) | 1999-12-15 |
Family
ID=7772638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96114121A Expired - Lifetime EP0764802B1 (en) | 1995-09-20 | 1996-09-04 | Shut-off and control valve |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5704588A (en) |
| EP (1) | EP0764802B1 (en) |
| JP (1) | JPH0989124A (en) |
| AT (1) | ATE187807T1 (en) |
| DE (2) | DE19534849A1 (en) |
| ES (1) | ES1034851Y (en) |
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| US6009788A (en) * | 1997-12-10 | 2000-01-04 | Mcdonnell Douglas Corporation | Variable flow-restricting device and method |
| WO2004016973A1 (en) * | 2002-08-19 | 2004-02-26 | Toto Ltd. | Disc valve |
| US7143786B2 (en) * | 2003-12-11 | 2006-12-05 | Newfrey Llc | Two-handle flow-through valve |
| US7234613B2 (en) * | 2004-07-12 | 2007-06-26 | Mcguire Patrick D | Granular material quick change valve assembly |
| US7093818B2 (en) * | 2004-08-03 | 2006-08-22 | Harris Corporation | Embedded control valve using homopolar motor |
| KR20060021456A (en) * | 2004-09-03 | 2006-03-08 | 현대모비스 주식회사 | Single body suspension with spring and damper for vehicles |
| US20070018130A1 (en) * | 2005-07-20 | 2007-01-25 | Hung-Nang Wu | Ceramic valve for antifreezing faucets |
| US8701711B2 (en) | 2011-06-13 | 2014-04-22 | Daniel Sharron | Continuously adjustable, multi-port selection, constant flow capability, externally-actuated rotary flow valve apparatus, system and method |
| US9777866B2 (en) * | 2016-02-15 | 2017-10-03 | Jiangsu Vocational College Of Information Technology | Non-contact flow control system having a totally sealed cavity |
| US10871234B2 (en) | 2018-10-23 | 2020-12-22 | Cameron International Corporation | Low-torque disc for a multiple orifice valve |
| US11815191B2 (en) | 2019-06-28 | 2023-11-14 | Cameron International Corporation | Adjustable erosion resistant choke valve |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3127738A1 (en) * | 1981-07-14 | 1983-02-03 | Friedrich Grohe Armaturenfabrik Gmbh & Co, 5870 Hemer | QUANTITY VALVE |
| DE3127714A1 (en) * | 1981-07-14 | 1983-02-03 | Friedrich Grohe Armaturenfabrik Gmbh & Co, 5870 Hemer | QUANTITY VALVE |
| US4823832A (en) * | 1984-07-11 | 1989-04-25 | Harden Industries, Inc. | Cartridge valve |
| DE8715044U1 (en) * | 1987-11-12 | 1988-01-14 | Fluehs Drehtechnik Gmbh, 5880 Luedenscheid, De | |
| IT1241171B (en) * | 1990-02-13 | 1993-12-29 | Studio Tecnico Sviluppo E Ricerche S.T.S.R. S.R.L. | FIXED PLATE FOR HYDRAULIC TAP, WITH MEANS FOR THE ELIMINATION OF DEBRIS |
| DE4212236A1 (en) * | 1992-04-11 | 1993-10-14 | Grohe Armaturen Friedrich | Control and shut-off valve |
-
1995
- 1995-09-20 DE DE19534849A patent/DE19534849A1/en not_active Withdrawn
-
1996
- 1996-07-18 JP JP8189073A patent/JPH0989124A/en active Pending
- 1996-08-01 ES ES09602114U patent/ES1034851Y/en not_active Expired - Lifetime
- 1996-09-04 DE DE59603913T patent/DE59603913D1/en not_active Expired - Lifetime
- 1996-09-04 EP EP96114121A patent/EP0764802B1/en not_active Expired - Lifetime
- 1996-09-04 AT AT96114121T patent/ATE187807T1/en not_active IP Right Cessation
- 1996-09-06 US US08/709,039 patent/US5704588A/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2063161A1 (en) | 2007-11-20 | 2009-05-27 | Grohe AG | Automatic sanitary valve |
| DE102007055585A1 (en) | 2007-11-20 | 2009-06-04 | Grohe Ag | Automatic sanitary valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0989124A (en) | 1997-03-31 |
| ATE187807T1 (en) | 2000-01-15 |
| US5704588A (en) | 1998-01-06 |
| ES1034851Y (en) | 1997-07-01 |
| ES1034851U (en) | 1997-02-16 |
| DE19534849A1 (en) | 1997-03-27 |
| DE59603913D1 (en) | 2000-01-20 |
| EP0764802A1 (en) | 1997-03-26 |
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